Mr. Per Wiking Sjöstrand is a Chairman at Fasadgruppen Group AB, a Chairman at Instalco Holding AB, a Chairman at Instalco AB, a Chairman at Green Landscaping Group AB, a Chairman at Åhlin & Ekeroth AB, a Chairman at Ahlin & Ekeroth Byggnads AB, a Chairman at BI-VENT AB, a Chairman at DALAB Sverige AB, a Chairman at Elkontakt i Borås AB, a Chairman at Elkontakt I Göteborg AB, a Chairman at Håndverksgruppen Norge AS, a Chairman at J. N. Kraftinstallatöre AB, a Chairman at JN Elinstallatörer AB, a Chairman at Klimatrör I Stockholm AB, a Chairman at Ohmegi Elektro AB, a Chairman at Ohmslag AB, a Chairman at ORAB Entreprenad AB, a Chairman at OTK Klimat Installationer AB, a Chairman at POB:S Elektriska AB, a Chairman at Rodens Värme & Sanitet AB, a Chairman at Rörgruppen AB, a Chairman at Trä och Inredningsmontage Kylteknik i Bandhagen AB, a Chairman at Tunabygdens Vvs Installator AB, a Chairman at Vallacom AB, a Chairman at Voltage AB, a Chairman at VVS-Metoder Stockholm AB, a Chairman & Chief Executive Officer at Instalco Sverige AB, a Deputy Member at El-Expressen i Lund AB, a Deputy Member at Tofta Plåt & Ventilation AB, a Deputy Member at Ventilationsforbaettringar I Malmo AB and a Project Head of Trafikverket.

He is on the Board of Directors at Expertkyl AB, Inkon Sverige AB, Installatörsföretagen Service i Sverige AB, Perros AB, Rörläggare AB and Uppsala Asfaltsanläggningar AB.